A soft-hard adjustment device, pneumatic comfort system and seat

Abstract

This utility model discloses a stiffness adjustment device, a pneumatic comfort system, and a seat. A first elastic shell has a first receiving cavity and a first opening that are interconnected, and a first elastic filler fills the first receiving cavity. A first deformable component is stacked on a second deformable component. The second elastic shell has a second receiving cavity and a second opening that are interconnected, and a second elastic filler fills the second receiving cavity. When the first opening deflates and the second opening inflates, the height of the first deformable component decreases, the stiffness of the first deformable component increases, and the height of the second deformable component increases. When the first opening inflates and the second opening deflates, the height of the first deformable component increases, the stiffness of the first deformable component decreases, and the height of the second deformable component decreases. In this utility model embodiment, the stiffness adjustment device exhibits minimal or constant height changes when adjusting stiffness, reducing the probability of changes in the user's posture.

Description

Technical Field

[0001] This utility model relates to the field of soft and hard adjustment technology, and in particular to a soft and hard adjustment device, a pneumatic comfort system and a seat. Background Technology

[0002] Pneumatic comfort systems (such as pneumatic massage systems or pneumatic support systems) typically include an air pump, an air valve, and an air bag that is connected to the air pump via the air valve. When the pneumatic comfort system is working, the air pump supplies air, which is controlled by the air valve to inflate and deflate the air bag. Through the inflation and deflation of the air bag, the massage or support function of the air bag is achieved.

[0003] Currently, when airbags are used for support, their firmness is typically adjusted by inflating or deflating them. However, when an airbag is inflated to increase its firmness, its overall height increases, causing changes in the user's posture and reducing comfort. Utility Model Content

[0004] The present invention aims to provide a soft-hardness adjustment device, a pneumatic comfort system, and a seat that can overcome or at least partially solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this utility model embodiment is: providing a soft-hard adjustment device, including a first deformable component and a second deformable component; the first deformable component includes a first elastic shell and a first elastic filler, the first elastic shell is provided with a first receiving cavity and a first opening that are interconnected, and the first elastic filler fills the first receiving cavity; the first deformable component is stacked on the second deformable component, the second deformable component includes a second elastic shell and a second elastic filler, the second elastic shell is provided with a second receiving cavity and a second opening that are interconnected, and the second elastic filler fills the second receiving cavity; when the first elastic shell discharges through the first opening... When the first elastic shell is inflated through the second opening, the first elastic shell contracts and deforms, the first elastic filler is compressed, the height of the first deformable component decreases, the hardness of the first deformable component increases, the second elastic shell expands and deforms, the second elastic filler expands, and the height of the second deformable component increases; when the first elastic shell is inflated through the first opening and the second elastic shell is deflated through the second opening, the first elastic shell expands and recovers its deformation, the first elastic filler expands, the height of the first deformable component increases, the hardness of the first deformable component decreases, the second elastic shell contracts and recovers its deformation, the second elastic filler is compressed, and the height of the second deformable component decreases.

[0006] Optionally, the soft-hard adjustment device also includes a connecting structure, which is disposed between the first elastic housing and the second elastic housing, and the connecting structure fixes the first elastic housing and the second elastic housing to each other.

[0007] Optionally, the connection structure can be a snap-on structure, an adhesive structure, a stitched structure, a tie structure, a heat-pressed structure, or a Velcro structure.

[0008] Optionally, the first elastic filler is prepared and molded from a foamed material; and / or, the second elastic filler is prepared and molded from a foamed material.

[0009] Optionally, along the direction in which the first deformable component is stacked on the second deformable component, the second elastic shell has a top and a bottom that are disposed opposite to each other, with the top attached to the first deformable component; the second deformable component also includes a flat-height structure disposed on the second elastic shell, the flat-height structure being used to constrain the top when the height of the second deformable component rises or falls, so as to keep the top flat.

[0010] Optionally, the flat-high structure includes multiple traction belts, with the two ends of the multiple traction belts connected to the top and bottom respectively, and the multiple traction belts are spaced apart along a direction perpendicular to the first deformable component and stacked on the second deformable component.

[0011] Optionally, multiple traction straps are located inside the first elastic housing, with their two ends connected to the inner surface of the top and the inner surface of the bottom, respectively; or, multiple traction straps are located outside the first elastic housing, with their two ends connected to the outer surface of the top and the outer surface of the bottom, respectively.

[0012] Optionally, the flat-high structure includes multiple constraint rings, which are sleeved on the second elastic shell and stacked on the second deformable component in a direction perpendicular to the first deformable component, with the multiple constraint rings spaced apart.

[0013] Optionally, along a first direction, the cross-sectional shape of the first receiving cavity is the same as the cross-sectional shape of the first elastic filler, and the cross-sectional area of ​​the first receiving cavity is equal to the cross-sectional area of ​​the first elastic filler, wherein the first direction is the length direction, width direction, or height direction of the first elastic shell; and / or, along a second direction, the cross-sectional shape of the second receiving cavity is the same as the cross-sectional shape of the second elastic filler, and the cross-sectional area of ​​the second receiving cavity is equal to the cross-sectional area of ​​the second elastic filler, wherein the second direction is the length direction, width direction, or height direction of the second elastic shell.

[0014] Optionally, along a third direction, the cross-sectional shape of the first elastic shell is the same as that of the second elastic shell, and the cross-sectional area of ​​the first elastic shell is equal to that of the second elastic shell. The third direction is the length direction, width direction, or height direction of the first or second elastic shell.

[0015] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is: to provide a pneumatic comfort system, including an air source, a high-pressure tank, a low-pressure tank and the above-mentioned soft and hard adjustment device, one end of the high-pressure tank is connected to the air outlet of the air source, the other end of the high-pressure tank is connected to the first opening of the soft and hard adjustment device, one end of the low-pressure tank is connected to the air inlet of the air source, and the other end of the low-pressure tank is connected to the second opening of the soft and hard adjustment device.

[0016] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is to provide a seat including the above-mentioned pneumatic comfort system.

[0017] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment provides a soft / hard adjustment device, including a first deformable component and a second deformable component; the first deformable component includes a first elastic shell and a first elastic filler, the first elastic shell being provided with a first receiving cavity and a first opening communicating with each other, and the first elastic filler filling the first receiving cavity; the first deformable component is stacked on the second deformable component, the second deformable component including a second elastic shell and a second elastic filler, the second elastic shell being provided with a second receiving cavity and a second opening communicating with each other, and the second elastic filler filling the second receiving cavity; when the first elastic shell passes through the first opening... When the first elastic shell is inflated through the first opening and the second elastic shell is inflated through the second opening, the first elastic shell contracts and deforms, the first elastic filler is compressed, the height of the first deformable component decreases, the hardness of the first deformable component increases, the second elastic shell expands and deforms, the second elastic filler expands, and the height of the second deformable component increases; when the first elastic shell is inflated through the first opening and the second elastic shell is inflated through the second opening, the first elastic shell expands and recovers its deformation, the first elastic filler expands, the height of the first deformable component increases, the hardness of the first deformable component decreases, the second elastic shell contracts and recovers its deformation, the second elastic filler is compressed, and the height of the second deformable component decreases.

[0018] In this embodiment of the invention, when the first deformable component adjusts its stiffness, causing its height to decrease, the second deformable component can adjust its height so that the overall height of the first and second deformable components changes little or remains unchanged. That is, when the stiffness adjustment device adjusts its stiffness, the height change is small or remains unchanged, reducing the probability of changes in the user's posture and improving user comfort. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this utility model or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of the pneumatic comfort system provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fluid distribution device of the pneumatic comfort system provided in this embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of one embodiment of the first valve body of the fluid distribution device provided in this utility model. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of one embodiment of the first valve body of the fluid distribution device provided in this utility model. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the structure of one embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of the structure of one embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the structure of one embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 3 ;

[0027] Figure 8 This is a schematic diagram of another embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 1 ;

[0028] Figure 9 This is a schematic diagram of another embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 2 ;

[0029] Figure 10 This is a schematic diagram of another embodiment of the second valve body of the fluid distribution device provided in this utility model. Figure 3 ;

[0030] Figure 11This is a schematic diagram of the structure of the stiffness adjustment device of the pneumatic comfort system provided in this embodiment of the utility model. Figure 1 ;

[0031] Figure 12 This is a schematic diagram of the structure of the stiffness adjustment device of the pneumatic comfort system provided in this embodiment of the utility model. Figure 2 ;

[0032] Figure 13 This is a schematic diagram of the structure of the stiffness adjustment device of the pneumatic comfort system provided in this embodiment of the utility model. Figure 3 ;

[0033] Figure 14 This is a schematic diagram of the structure of the stiffness adjustment device of the pneumatic comfort system provided in this embodiment of the utility model. Figure 4 ;

[0034] Figure 15 This is a structural schematic diagram of the seat provided in an embodiment of the present utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Air source, 11. Air inlet, 12. Air outlet;

[0037] 2. Fluid distribution device; 21. Housing; 211. First gas passage; 212. Second gas passage; 22. First valve body; 221. First air inlet; 222. First air outlet; 223. First valve port; 224. First valve shell; 225. First valve core; 226. First electromagnetic component; 23. Second valve body; 230. Second air outlet; 231. Second air inlet; 232. Second valve port; 233. Second valve shell; 234. Second valve core; 235. Third valve core; 236. Second electromagnetic component; 237. Third electromagnetic component; 238. First actuator; 2381. First connecting rod; 2382. First shape memory alloy wire; 2383. First spring; 2384. First circuit board; 239. Second actuator; 2391. Second connecting rod; 2392. Second shape memory alloy wire; 2393. Second spring; 2394. Second circuit board;

[0038] 3. First air bag;

[0039] 4. Soft and hard adjustment device; 41. First deformable component; 411. First elastic shell; 4111. First receiving cavity; 4112. First opening; 412. First elastic filler; 42. Second deformable component; 421. Second elastic shell; 4211. Second receiving cavity; 4212. Second opening; 422. Second elastic filler; 43. Connecting structure; 431. First Velcro; 432. Second Velcro; 44. Flat and high structure; 441. Traction belt; 442. Restraint belt ring;

[0040] 5. Third airbag;

[0041] 6. Fourth air bag;

[0042] 7. High-pressure tank

[0043] 8. Low-pressure tanks;

[0044] 100 pneumatic comfort system;

[0045] 200 Seat Cushion, 201 First Zone, 202 Second Zone;

[0046] 300 backrest;

[0047] 1000 seats. Detailed Implementation

[0048] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0050] Please see Figure 1 This utility model provides an embodiment of a pneumatic comfort system 100, wherein the pneumatic comfort system 100 is at least one of a pneumatic massage system, a pneumatic soft-hard adjustment system, a pneumatic lumbar support system, and a pneumatic side wing support system.

[0051] The pneumatic comfort system 100 includes an air source 1, a fluid distribution device 2, a first air bag 3, and a stiffness adjustment device 4. The air source 1 has an air inlet 11 and an air outlet 12; the fluid distribution device 2 includes a first valve body 22 and a second valve body 23. The first valve body 22 has switchable inflation and deflation states, and the second valve body 23 has switchable deflation, inflation, and pressure holding states, and can switch between these states; the first air bag 3 is connected to the first valve body 22; the stiffness adjustment device 4 is connected to the second valve body 23 and includes a deformable component. The deformable component includes an elastic shell and an elastic filler. The elastic shell 22 has a receiving cavity and an opening, the elastic filler fills the receiving cavity, and the opening is connected to the second valve body 23. When the first valve body 22 is in an inflated state, the first air bag 3 is connected to the air outlet 12 of the air source 1 assembly through the first valve body 22, so that the first air bag 3 expands and deforms under positive pressure; when the first valve body 22 is in a deflated state, the first air bag 3 is connected to the air inlet 11 of the air source 1 through the first valve body 22, so that the first air bag 3 recovers its deformation under negative pressure. When the second valve body 23 is in the deflated state, the soft-hard adjustment device 4 is connected to the air inlet 11 of the air source 1 through the second valve body 23, so that the soft-hard adjustment device 4 contracts and deforms under negative pressure, and the hardness of the soft-hard adjustment device 4 increases. When the second valve body 23 is in the inflated state, the soft-hard adjustment device 4 is connected to the external environment or the air inlet 11 of the air source 1 through the second valve body 23, so that the soft-hard adjustment device 4 recovers its deformation under normal pressure or positive pressure, and the hardness of the soft-hard adjustment device 4 decreases. When the second valve body 23 is in the pressure-holding state, the soft-hard adjustment device 4 enters the pressure-holding mode, and the hardness of the soft-hard adjustment device 4 remains unchanged.

[0052] In this way, when the hardness of the softness adjustment device 4 is increased, the softness adjustment device 4 can shrink and deform under negative pressure to adapt to the curve of the human body and improve the comfort of use.

[0053] It is understandable that the "adaptation to the human body curve" here refers to the fact that after the body is supported, the body first applies pre-pressure to the body adjustment device 4 to deform it, allowing the device to adapt to the body curve. Then, under negative pressure, the device contracts and deforms to increase its rigidity, so that its deformed shape is fixed and conforms to the body curve. It is also understandable that once the body adjustment device 4 has reached its deformed shape, even if the body separates from it (i.e., the pre-pressure is removed), the device's shape remains unchanged, and it continues to conform to the body curve when the body sits down again.

[0054] It should be noted that the hardness of the soft-hard adjustment device 4 remains unchanged, meaning that the hardness of the soft-hard adjustment device 4 remains unchanged when it is not carrying any object or being compressed by any object.

[0055] It should also be noted that the gas source includes, but is not limited to, air pumps, gas tanks, or air compressors.

[0056] In some embodiments, the first air bag 3 is used as a massage air bag, and the firmness adjustment device 4 is used as a seat cushion 200 support air bag or a hip support air bag.

[0057] In some embodiments, the elastic filler is prepared and molded from a foamed material. This method enables the deformable component to possess good elasticity and a basic support height.

[0058] In some embodiments, the cross-sectional shape of the receiving cavity is the same as the cross-sectional shape of the elastic filler along the length, width, or height direction of the elastic shell, and the cross-sectional area of ​​the receiving cavity is equal to the cross-sectional area of ​​the elastic filler. This allows the elastic filler to fill the receiving cavity completely, reducing the probability of the elastic filler shifting during elastic deformation.

[0059] In some embodiments of the pneumatic comfort system 100 described above, the pneumatic comfort system 100 further includes a second air bag (not shown). The second air bag is connected to the second valve body 23 and is used as a lumbar support air bag. When the second valve body 23 is in a deflated state, the second air bag is connected to the air inlet 11 of the air source 1 through the second valve body 23, so that the second air bag contracts and deforms under negative pressure to adapt to the curve of the human body, and the hardness of the second air bag increases. When the second valve body 23 is in an inflated state, the second air bag is connected to the external environment or the air inlet 11 of the air source 1 through the second valve body 23, so that the second air bag recovers its deformation under normal pressure or positive pressure, and the hardness of the second air bag decreases. When the second valve body 23 is in a pressure-holding state, the second air bag enters a pressure-holding mode, and the hardness of the second air bag remains unchanged.

[0060] In some embodiments of the pneumatic comfort system 100, the pneumatic comfort system 100 further includes a third air bag (not shown). The third air bag is connected to the second valve body 23 and is used as a side wing support air bag. When the second valve body 23 is in a deflated state, the third air bag is connected to the air inlet 11 of the air source 1 through the second valve body 23, so that the third air bag contracts and deforms under negative pressure to adapt to the curve of the human body and the stiffness of the third air bag increases. When the second valve body 23 is in an inflated state, the third air bag is connected to the external environment or the air inlet 11 of the air source 1 through the second valve body 23, so that the third air bag recovers its deformation under normal pressure or positive pressure and the stiffness of the third air bag decreases. When the second valve body 23 is in a pressure-holding state, the third air bag enters a pressure-holding mode and the stiffness of the third air bag remains unchanged.

[0061] It should be noted that in some embodiments, the second airbag is used as a waist support airbag and the third airbag is used as a side support airbag.

[0062] When both the second and third air bags are connected to the second valve body 23, the second valve body 23 can be used to synchronously supply gas to the soft and hard adjustment device 4, the second air bag and the third air bag, avoiding the need for additional valve bodies, which helps to simplify the overall structure of the pneumatic comfort system 100 and reduce the overall volume of the pneumatic comfort system 100.

[0063] For the above-described pneumatic comfort system 100, please refer to some embodiments. Figure 1 The pneumatic comfort system 100 also includes a high-pressure tank 5 and a low-pressure tank 6. One end of the high-pressure tank 5 is connected to the outlet 12 of the air source 1, and the other end of the high-pressure tank 5 is connected to the first valve body 22 and the second valve body 23 respectively. One end of the low-pressure tank 6 is connected to the inlet 11 of the air source 1, and the other end of the low-pressure tank 6 is connected to the first valve body 22 and the second valve body 23 respectively. This design reduces the burden on the air source 1, improves the response speed of gas regulation, and avoids untimely gas regulation due to lag in the air source 1.

[0064] For the above-described pneumatic comfort system 100, please refer to some embodiments. Figure 1 The fluid distribution device 2 also includes a pressure sensor, which is installed in the second valve body 23. The pressure sensor is used to monitor the internal pressure of the soft-hard adjustment device 4 when it recovers its deformation under positive pressure through the second valve body 23. In this way, when the second valve body 23 is connected to the high-pressure tank 5, the gas flow rate increases due to the high pressure. Therefore, the pressure sensor can monitor the internal pressure of the soft-hard adjustment device 4 in real time, avoiding overcharging of the soft-hard adjustment device 4 and preventing safety hazards.

[0065] For the fluid distribution device 2 described above, please refer to some embodiments. Figure 2The fluid distribution device 2 includes a housing 21, multiple first valve bodies 22, and multiple second valve bodies 23. The multiple first valve bodies 22 are all disposed within the housing 21. Each first valve body 22 has a first inflation port 221, a first deflation port 222, and a first valve port 223. The first valve port 223 is used to connect to a first air bag 3. The first valve body 22 has switchable inflation and deflation states. When the first valve port 223 is connected to the first inflation port 221, the first valve body 22 is in an inflation state; when the first valve port 223 is connected to the first deflation port 222, the first valve body 22 is in a deflation state. The multiple second valve bodies 23... All bodies 23 are disposed on the housing 21. The second valve body 23 is provided with a second vent 230, a second inflation port 231 and a second valve port 232. The second valve port 232 is used to connect the soft and hard adjustment device 4. The second valve body 23 has a switchable venting state, inflation state and pressure holding state. When the second valve port 232 is connected to the second vent 230, the second valve body 23 is in the venting state. When the second valve port 232 is connected to the second inflation port 231, the second valve body 23 is in the inflation state. When both the second vent 230 and the second inflation port 231 are closed, the second valve body 23 is in the pressure holding state.

[0066] In the above manner, the first valve body 22 can inflate or deflate the air bag, so that the air bag expands and deforms when inflated or deflates and returns to its original shape, thus satisfying the massage function of the air bag. The second valve body 23 can perform negative pressure deflation / extraction / inhalation, positive pressure inflation or pressure holding on the soft and hard adjustment device 4, so that the soft and hard adjustment device 4 contracts and deforms under negative pressure, returns to its original shape when inflated or keeps its shape unchanged, thus satisfying the soft and hard adjustment function of the soft and hard adjustment device 4. Therefore, the fluid distribution device 2 can perform differentiated control on different types of actuators.

[0067] Furthermore, in some embodiments, the second air bag and the third air bag are connected to the second valve port 232 of the second valve body 23.

[0068] For the fluid distribution device 2 described above, please refer to some embodiments. Figure 2 The housing 21 is provided with a first gas passage 211 and a second gas passage 212. The first gas passage 211 is used to communicate with the outlet 12 of the gas source 1, and the second gas passage 212 is used to communicate with the inlet 11 of the gas source 1. The first inflation ports 221 of the multiple first valve bodies 22 are all connected to the first gas passage 211, and the first vent ports 222 of the multiple first valve bodies 22 are all connected to the second gas passage 212. The second vent ports 230 of the multiple second valve bodies 23 are all connected to the second gas passage 212, and the second inflation ports 231 of the multiple second valve bodies 23 are all connected to the first gas passage 211 or the external environment.

[0069] When the second air inlets 231 of the multiple second valve bodies 23 are all connected to the first gas passage 211, the second valve ports 232 of the multiple second valve bodies 23 can supply air at positive pressure so that the soft and hard adjustment device 4 can quickly return to its original state from the contracted and deformed state; when the second air inlets 231 of the multiple second valve bodies 23 are all connected to the external environment, the second valve ports 232 of the multiple second valve bodies 23 can supply air at normal pressure so that the soft and hard adjustment device 4 can return to its original state from the contracted and deformed state.

[0070] In some embodiments of the fluid distribution device 2, there are multiple pressure sensors, and multiple pressure sensors are configured in a one-to-one correspondence with multiple second valve bodies 23. That is, a pressure sensor is set at the second valve port 232 of a second valve body 23, and a pressure sensor is used to monitor the pressure of the soft and hard adjustment device 4 when the second valve body 23 supplies air to the soft and hard adjustment device 4.

[0071] For the fluid distribution device 2 described above, please refer to some embodiments. Figure 3 and Figure 4 The first valve body 22 includes a first valve shell 224, a first valve core 225, and a first electromagnetic component 226. A first inflation port 221, a first deflation port 222, and a first valve port 223 are all located within the first valve shell 224. The first inflation port 221 and the first deflation port 222 are opposite to each other, and the first valve port 223 is located between the first inflation port 221 and the first deflation port 222. The first valve core 225 is movably disposed within the first valve shell 224, and the first electromagnetic component 226 is disposed within the first valve shell 224. The magnetic component 226 is used to drive the first valve core 225 to move when energized. When the first valve core 225 is in a preset first position, it closes the first vent 222, and the first valve port 223 is connected to the first inflation port 221, so that the first valve body 22 is in an inflated state. When the first valve core 225 is in a preset second position, it closes the first inflation port 221, and the first valve port 223 is connected to the first vent 222, so that the first valve body 22 is in a deflated state. In this way, the first valve body 22 constitutes a solenoid valve.

[0072] For the fluid distribution device 2 described above, please refer to some embodiments. Figures 5 to 7The second valve body 23 includes a second valve shell 233, a second valve core 234, a third valve core 235, a second electromagnetic component 236, and a third electromagnetic component 237. The second vent 230, the second inflation port 231, and the second valve port 232 are all located in the second valve shell 233. The second vent 230 is disposed between the second inflation port 231 and the second valve port 232. The second valve core 234 and the third valve core 235 are both movably disposed within the second valve shell 233. The second electromagnetic component 236 and the third electromagnetic component 237 are both disposed in the second valve shell 233. The second electromagnetic component 236 is used to drive the second valve core 234 to move when energized, and the third electromagnetic component 237 is used to drive the third valve core 235 to move when energized. When the second valve core 234 and the third valve core 235 are in the preset first position, the second valve core 234 closes the second inflation port 231, and the second valve port 232 is connected to the second vent port 230, so that the second valve body 23 is in a vented state. When the second valve core 234 and the third valve core 235 are in the preset second position, the third valve core 235 closes the second vent port 230, and the second valve port 232 is connected to the second inflation port 231, so that the second valve body 23 is in an inflation state. When the second valve core 234 and the third valve core 235 are in the preset third position, the second valve core 234 closes the second inflation port 231, and the third valve core 235 closes the second vent port 230, so that the second valve body 23 is in a pressure-holding state. In this way, the second valve body 23 constitutes a solenoid valve.

[0073] For the fluid distribution device 2 described above, please refer to some embodiments. Figures 8 to 10The second valve body 23 includes a second valve housing 233, a second valve core 234, a third valve core 235, a first actuator 238, and a second actuator 239. A second vent port 230, a second inflation port 231, and a second valve port 232 are all located within the second valve housing 233. The second valve port 232 is positioned between the second vent port 230 and the second inflation port 231. The second valve core 234 and the third valve core 235 are both movably disposed within the second valve housing 233. The first actuator 238 and the second actuator 239 are both disposed within the second valve housing 233. The first actuator 238 is connected to the second valve core 234, and the second actuator 239 is connected to the third valve core 235. When the second valve core 234 and... When the third valve core 235 is in the preset first position, the third valve core 235 closes the second inflation port 231, and the second valve port 232 is connected to the second vent port 230, so that the second valve body 23 is in a vented state. When the second valve core 234 and the third valve core 235 are in the preset second position, the second valve core 234 closes the second vent port 230, and the second valve port 232 is connected to the second inflation port 231, so that the second valve body 23 is in an inflated state. When the second valve core 234 and the third valve core 235 are in the preset third position, the second valve core 234 closes the second vent port 230, and the third valve core 235 closes the second inflation port 231, so that the second valve body 23 is in a pressure-holding state. In the above manner, the second valve body 23 constitutes an SMA valve.

[0074] Furthermore, in some embodiments, please refer to Figures 8 to 10 The first actuator 238 includes a first connecting rod 2381, a first shape memory alloy wire 2382, a first spring 2383, and a first circuit board 2384. The first connecting rod 2381, the first shape memory alloy wire 2382, the first spring 2383, and the first circuit board 2384 are all disposed inside the second valve housing 233. One end of the first connecting rod 2381 is connected to the second valve core 234, and the other end of the first connecting rod 2381 is connected to the first shape memory alloy wire 2382. The first shape memory alloy wire 2382 is electrically connected to the first circuit board 2384. And / or, in some embodiments, the second actuator 239 includes a second connecting rod 2391, a second shape memory alloy wire 2392, a second spring 2393, and a second circuit board 2394. The second connecting rod 2391, the second shape memory alloy wire 2392, the second spring 2393, and the second circuit board 2394 are all disposed within the second valve housing 233. One end of the second connecting rod 2391 is connected to the third valve core 235, and the other end of the second connecting rod 2391 is connected to the second shape memory alloy wire 2392. The second shape memory alloy wire 2392 is electrically connected to the second circuit board 2394. In this manner, the shape memory alloy wire undergoes electrical heating and deformation when energized, driving the connecting rod to control the movement of the valve core.

[0075] Regarding the aforementioned stiffness adjustment device 4, please refer to some embodiments. Figures 11 to 13 The system comprises two deformable components: a first deformable component 41 and a second deformable component 42. The first deformable component 41 includes a first elastic shell 411 and a first elastic filler 412. The first elastic shell 411 has a first receiving cavity 4111 and a first opening 4112 that are interconnected. The first elastic filler 412 fills the first receiving cavity 4111. The first deformable component 41 is stacked on top of the second deformable component 42. The second deformable component 42 includes a second elastic shell 421 and a second elastic filler 422. The second elastic shell 421 has a second receiving cavity 4211 and a second opening 4212 that are interconnected. The second elastic filler 422 fills the second receiving cavity 4211. When the first elastic shell 411 vents air through the first opening 4112, and the second elastic shell 42... When inflated through the second opening 4212, the first elastic shell 411 contracts and deforms, the first elastic filler 412 is compressed and deforms to conform to the curve of the human body, the height of the first deformable component 41 decreases, the hardness of the first deformable component 41 increases, the second elastic shell 421 expands and deforms, the second elastic filler 422 expands, and the height of the second deformable component 42 increases; when the first elastic shell 411 is inflated through the first opening 4112 and the second elastic shell 421 is deflated through the second opening 4212, the first elastic shell 411 expands and recovers its deformation, the first elastic filler 412 expands, the height of the first deformable component 41 increases, the hardness of the first deformable component 41 decreases, the second elastic shell 421 contracts and recovers its deformation, the second elastic filler 422 is compressed, and the height of the second deformable component 42 decreases.

[0076] In this way, when the first deformable component adjusts its stiffness and causes its height to decrease, the second deformable component 42 can adjust its height so that the overall height of the first deformable component 41 and the second deformable component 42 changes little or remains unchanged. That is, when the stiffness adjustment device 4 adjusts its stiffness, the height changes little or remains unchanged, reducing the probability of changes in the user's posture and improving the user's comfort.

[0077] It should be noted that the first deformable component 41 is used to directly support the human body, and the second deformable component 42 is used to support the first deformable component 41, that is, the second deformable component 42 is used to indirectly support the human body.

[0078] It should also be noted that during the process of adjusting the hardness of the hardness adjustment device 4, when the hardness of the first deformable component 41 increases and its height decreases, the height of the second deformable component 42 can be increased to form height compensation, so that when the user feels that the hardness of the hardness adjustment device 4 has become harder, the overall height of the hardness adjustment device 4 changes little or remains unchanged; conversely, when the hardness of the first deformable component 41 decreases and its height increases, the height of the second deformable component 42 can be decreased to form height balance, so that when the user feels that the hardness of the hardness adjustment device 4 has become softer, the overall height of the hardness adjustment device 4 also changes little or remains unchanged.

[0079] Regarding the aforementioned stiffness adjustment device 4, please refer to some embodiments. Figure 14 The first elastic filler is made of foamed material; and / or, the second elastic filler is made of foamed material. Through the above methods, the first deformable component 41 and / or the second deformable component 42 can possess good elasticity and a basic support height.

[0080] Regarding the aforementioned stiffness adjustment device 4, please refer to some embodiments. Figures 11 to 13 The stiffness adjustment device 4 also includes a connecting structure 43, which is disposed between the first elastic shell 411 and the second elastic shell 421, and fixes the first elastic shell 411 and the second elastic shell 421 to each other. Through the connecting structure 43, the connection stability of the first elastic shell 411 and the second elastic shell 421 can be improved, the relative displacement between the first elastic shell 411 and the second elastic shell 421 can be reduced, and the misalignment of the first elastic shell 411 and the second elastic shell 421 during deformation can be reduced.

[0081] Among them, the connecting structure 43 can be a snap-on structure, an adhesive structure, a stitched structure, a tie structure, a heat-pressed structure, or a Velcro structure.

[0082] For example, in some embodiments, when the connecting structure 43 is a snap-fit ​​structure, it includes a first snap-fit ​​and a second snap-fit. The first snap-fit ​​is fixed to the surface of the first elastic housing 411 facing the second elastic housing 421 by adhesive, heat fusion, or stitching. The second snap-fit ​​is fixed to the surface of the second elastic housing 421 facing the first elastic housing 411 by adhesive, heat fusion, or stitching. The first snap-fit ​​and the second snap-fit ​​engage to fix the first elastic housing 411 and the second elastic housing 421 to each other, which can improve the connection stability of the first elastic housing 411 and the second elastic housing 421 while facilitating the assembly and disassembly of the first elastic housing 411 and the second elastic housing 421.

[0083] Alternatively, in other embodiments, when the connecting structure 43 is a hook and loop fastener structure, it includes a first hook and loop fastener 431 and a second hook and loop fastener 432. The first hook and loop fastener 431 is fixed to the surface of the first elastic shell 411 facing the second elastic shell 421 by adhesive, heat fusion, or stitching. The second hook and loop fastener 432 is fixed to the surface of the second elastic shell 421 facing the first elastic shell 411 by adhesive, heat fusion, or stitching. The first hook and loop fastener 431 and the second hook and loop fastener 432 are attached to fix the first elastic shell 411 and the second elastic shell 421 to each other, which can improve the connection stability of the first elastic shell 411 and the second elastic shell 421 while facilitating the assembly and disassembly of the first elastic shell 411 and the second elastic shell 421.

[0084] Regarding the aforementioned stiffness adjustment device 4, please refer to some embodiments. Figures 11 to 13 Along the direction in which the first deformable component 41 is stacked on top of the second deformable component 42, the second elastic shell 421 has a top and a bottom that are oppositely disposed, with the top attached to the first deformable component 41; the second deformable component 42 also includes a flat-height structure 44, which is disposed on the second elastic shell 421. The flat-height structure 44 is used to constrain the top when the height of the second deformable component 42 rises or falls, so as to keep the top flat. In this way, by improving the flatness of the second deformable component 42 when the height of the second deformable component 42 rises, local bulges or collapses of the second deformable component 42 are reduced.

[0085] Furthermore, in some embodiments, please refer to Figures 11 to 13 The flat-high structure 44 includes multiple traction straps 441, with their ends connected to the top and bottom respectively. These traction straps 441 are spaced apart along a direction perpendicular to the first deformable component 41 stacked on top of the second deformable component 42. For example, in some embodiments, the multiple traction straps 441 are located inside the first elastic housing 411, with their ends connected to the inner surfaces of the top and bottom respectively. Alternatively, in other embodiments, the multiple traction straps 441 are located outside the first elastic housing 411, with their ends connected to the outer surfaces of the top and bottom respectively. It is understood that the traction straps 441 are linear plastic straps, nylon straps, braided straps, or non-woven fabric straps, etc.

[0086] Furthermore, in some embodiments, please refer to Figures 11 to 13 The flat-high structure 44 includes multiple constraint band loops 442, which are sleeved on the second elastic shell 421 and stacked on the second deformable component 42 in a direction perpendicular to the first deformable component 41. The multiple constraint band loops 442 are spaced apart. It can be understood that the constraint bands are ring-shaped plastic bands, nylon bands, braided bands, or non-woven fabric bands, etc.

[0087] It should be noted that the flat-high structure 44 may have multiple traction belts 441 or multiple constraint belts, or it may have multiple traction belts 441 and multiple constraint belts at the same time.

[0088] In some embodiments of the aforementioned stiffness adjustment device 4, along a first direction, the cross-sectional shape of the first receiving cavity 4111 is the same as the cross-sectional shape of the first elastic filler 412, and the cross-sectional area of ​​the first receiving cavity 4111 is equal to the cross-sectional area of ​​the first elastic filler 412. The first direction is the length direction, width direction, or height direction of the first elastic shell 411. And / or, along a second direction, the cross-sectional shape of the second receiving cavity 4211 is the same as the cross-sectional shape of the second elastic filler 422, and the cross-sectional area of ​​the second receiving cavity 4211 is equal to the cross-sectional area of ​​the second elastic filler 422. The second direction is the length direction, width direction, or height direction of the second elastic shell 421. Through these methods, the first receiving cavity 4111 and the first elastic filler 412 can be made to have the same shape and size, i.e., the first elastic filler 412 fills the first receiving cavity 4111. And / or, the second receiving cavity 4211 and the second elastic filler 422 can be made to have the same shape and size, i.e., the second elastic filler 422 fills the second receiving cavity 4211.

[0089] In some embodiments of the aforementioned stiffness adjustment device 4, the cross-sectional shape of the first elastic housing 411 is the same as that of the second elastic housing 421 along a third direction, and the cross-sectional area of ​​the first elastic housing 411 is equal to that of the second elastic housing 421. The third direction refers to the length, width, or height direction of the first elastic housing 411 or the second elastic housing 421. This allows the first elastic housing 411 and the second elastic housing 421 to have the same shape and size.

[0090] Please see Figure 15 This utility model also provides an embodiment of a seat 1000, which includes the above-mentioned pneumatic comfort system 100. For the specific structure and function of the above-mentioned pneumatic comfort system 100, please refer to the above embodiments, which will not be repeated here.

[0091] In some embodiments of the aforementioned seat 1000, the seat 1000 includes a seat cushion 200, a backrest 300, and the aforementioned pneumatic comfort system 100. The seat cushion 200 is rotatably connected to the backrest 300. Along the width direction of the seat cushion 200, the seat cushion 200 is provided with a first region and a second region. The pneumatic comfort system 100 has two softness adjustment devices 4. One softness adjustment device 4 is embedded in the first region, and the other softness adjustment device 4 is embedded in the second region. The two softness adjustment devices 4 are used to align the two sides of the human buttocks respectively when the human body sits on the seat cushion 200.

[0092] This utility model also provides an embodiment of a means of transportation, which includes the aforementioned seat 1000. For the specific structure and function of the seat 1000, please refer to the above embodiment, which will not be repeated here.

[0093] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A softness adjustment device, characterized by, include: The first deformable component includes a first elastic shell and a first elastic filler. The first elastic shell is provided with a first receiving cavity and a first opening that are in communication with each other. The first elastic filler fills the first receiving cavity. The second deformable component is stacked on the first deformable component. The second deformable component includes a second elastic shell and a second elastic filler. The second elastic shell is provided with a second receiving cavity and a second opening that are interconnected. The second elastic filler is filled in the second receiving cavity. When the first elastic shell vents air through the first opening and the second elastic shell inflates through the second opening, the first elastic shell contracts and deforms, the first elastic filler is compressed, the height of the first deformable component decreases, the hardness of the first deformable component increases, the second elastic shell expands and deforms, the second elastic filler expands, and the height of the second deformable component increases. When the first elastic shell is inflated through the first opening and the second elastic shell is deflated through the second opening, the first elastic shell expands and recovers its deformation, the first elastic filler expands, the height of the first deformable component increases, the hardness of the first deformable component decreases, the second elastic shell contracts and recovers its deformation, the second elastic filler is compressed, and the height of the second deformable component decreases.

2. The soft / hard adjustment device according to claim 1, characterized in that, The soft-hardness adjustment device also includes a connecting structure, which is disposed between the first elastic shell and the second elastic shell, and the connecting structure fixes the first elastic shell and the second elastic shell to each other.

3. The soft / hard adjustment device according to claim 2, characterized in that, The connection structure can be a snap-on structure, an adhesive structure, a stitched structure, a tie structure, a heat-pressed structure, or a Velcro structure.

4. The stiffness adjustment device according to claim 1, characterized in that, The first elastic filler is prepared and molded from a foamed material; and / or, The second elastic filler is prepared and shaped from a foamed material.

5. The stiffness adjustment device according to claim 1, characterized in that, Along the direction in which the first deformable component is stacked on top of the second deformable component, the second elastic shell has a top and a bottom disposed opposite to each other, the top being attached to the first deformable component; The second deformable component further includes a flat-height structure disposed on the second elastic shell. The flat-height structure is used to constrain the top when the height of the second deformable component rises or falls, so as to keep the top flat.

6. The stiffness adjustment device according to claim 5, characterized in that, The flat-high structure includes multiple traction belts, with both ends of the multiple traction belts connected to the top and bottom respectively. The multiple traction belts are arranged at intervals along a direction perpendicular to the first deformable component stacked on the second deformable component.

7. The soft / hard adjustment device according to claim 6, characterized in that, The plurality of traction straps are located within the first elastic housing, with their two ends respectively connected to the inner surface of the top and the inner surface of the bottom; or, The plurality of traction straps are located outside the first elastic housing, and the two ends of the plurality of traction straps are respectively connected to the outer surface of the top and the outer surface of the bottom.

8. The stiffness adjustment device according to claim 5, characterized in that, The flat-high structure includes multiple constraint bands, which are sleeved on the second elastic shell and stacked on the second deformable component in a direction perpendicular to the first deformable component. The multiple constraint bands are spaced apart.

9. The stiffness adjustment device according to claim 1, characterized in that, Along the first direction, the cross-sectional shape of the first receiving cavity is the same as the cross-sectional shape of the first elastic filler, and the cross-sectional area of ​​the first receiving cavity is equal to the cross-sectional area of ​​the first elastic filler. The first direction is the length direction, width direction, or height direction of the first elastic shell. And / or, Along the second direction, the cross-sectional shape of the second receiving cavity is the same as the cross-sectional shape of the second elastic filler, and the cross-sectional area of ​​the second receiving cavity is equal to the cross-sectional area of ​​the second elastic filler. The second direction is the length direction, width direction, or height direction of the second elastic shell.

10. The stiffness adjustment device according to claim 1, characterized in that, Along a third direction, the cross-sectional shape of the first elastic shell is the same as that of the second elastic shell, and the cross-sectional area of ​​the first elastic shell is equal to that of the second elastic shell. The third direction is the length direction, width direction, or height direction of the first or second elastic shell.

11. A pneumatic comfort system characterized in that, It includes a gas source, a high-pressure tank, a low-pressure tank, and a hardness / softness adjustment device as described in any one of claims 1-10, wherein one end of the high-pressure tank is connected to the outlet of the gas source, the other end of the high-pressure tank is connected to the first opening of the hardness / softness adjustment device, one end of the low-pressure tank is connected to the inlet of the gas source, and the other end of the low-pressure tank is connected to the second opening of the hardness / softness adjustment device.

12. A seat, characterized by Including the pneumatic comfort system as described in claim 11.

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